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EpisodesRatings

Episode ratings data provided by configured data source. This site is not affiliated with IMDb. This product uses TMDB and the TMDB APIs but is not endorsed, certified, or otherwise approved by TMDB.

History's Greatest Mysteries | EpisodesRatings

History's Greatest Mysteries poster

DocumentaryMystery

History's Greatest Mysteries

2020-20267.0 IMDbEpisode avg 7.17 seasons · 96 rated episodes

Investigates a wide range of historically compelling topics and the mysteries surrounding each including the Titanic, D.B. Cooper, Roswell, John Wilkes Booth, and more. Fresh, new evidence and perspectives will be showcased, such as never-before-released documents, personal diaries and DNA evidence.

Episode ratings data provided by configured data source. This site is not affiliated with IMDb. This product uses TMDB and the TMDB APIs but is not endorsed, certified, or otherwise approved by TMDB.

Last updated 6/6/2026

Episode Rating Grid

Rows are episode numbers, columns are seasons. Every rated cell shows its numeric score.

9.0+

8.0-8.9

7.0-7.9

6.0-6.9

5.0-5.9

Below 5.0

Unrated/missing

Ep

S1

S2

S3

S4

S5

S6

S7

Avg

6.5

6.8

7.2

7.0

7.3

7.3

7.6

E1

5.9 6.7 7.2 6.9 7.2 7.2 7.9

E2

7.3 6.0 7.2 7.2 6.7 7.7 8.1

E3

6.3 7.2 7.4 6.8 7.2 7.1 7.0

E4

6.1 7.3 7.4 7.2 7.1 6.8 8.1

E5

-

7.1 6.5 6.9 7.6 7.3

E6

-

7.1 6.9 7.8 7.1 7.2

E7

-

7.5 6.8 7.2 7.4 7.8

E8

-

-

7.0 6.9 7.6 7.1 7.6

E9

-

-

7.1 7.1 7.3 6.8 7.4

E10

-

-

7.5 6.7 7.7 7.5 7.6

E11

-

-

7.5 7.1 7.3 6.9 7.5

E12

-

-

7.4 6.8 8.0 7.8 7.7

E13

-

-

6.2 6.4 7.3 7.2

-

E14

-

-

-

-

E15

-

-

-

-

E16

-

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-

-

-

E17

-

-

-

-

-

E18

-

-

-

-

-

E19

-

-

-

-

-

E20

-

-

-

-

-

E21

-

-

-

-

-

-

E22

-

-

-

-

-

-

E23

-

-

-

-

-

-

E24

-

-

-

-

-

-

E25

-

-

-

-

-

-

Show Statistics

Weighted episode-level summaries calculated from the configured ratings source.

OpenClose

Best episode

S7E2 Hunt for Adolf Eichmann: Case Closed (8.1)

Consistency score

91/100

Std dev 0.45

Rated episodes

96

6,179 total votes

Episode ratings timeline

Each point is a rated episode. Hover or focus a point for episode details.

Top 3 episodes: S7E2 Hunt for Adolf Eichmann: Case Closed8.1 S7E4 The Theft of the Mona Lisa: Case Closed8.1 S5E12 The Sinking of the Titanic8.0

Streaming options

Availability may vary by region. Showing US provider data.

Amazon Prime Videosubscription

Disney Plussubscription

Hulusubscription

Philosubscription

HISTORY Vault Apple TV Channelsubscription

HISTORY Vault Amazon Channelsubscription

Amazon Prime Video with Adssubscription

Historysubscription

The Roku Channelfree

Amazon Videobuy

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Worst episode

S1E1 The Final Hunt For D.B. Cooper (5.9)

Highest-rated season

Season 7 (7.6)

Lowest-rated season

Season 1 (6.5)

Average episode rating

7.1