Map of the world's great castles and fortresses(thecastlemap.com)

291 points by marklit 3 months ago | 182 comments

Bluegraph – Explore NOAA buoy data, rebuilt in 3D from measured spectra(bluegraph.io)

15 points by polytap 27 days ago | 2 comments

Bluegraph is a web app for exploring NOAA National Data Buoy Center observations on a 3D globe, with station search, wave spectra, storms, and notable readings.

Flightradar24 for Ships(atlas.flexport.com)

232 points by chromy 7 months ago | 47 comments

Shipmap.org(shipmap.org)

736 points by surprisetalk 9 months ago | 112 comments

Interactive animated map visualizing global commercial shipping movements during 2012, with cargo types and CO2 emissions, by Kiln and UCL Energy Institute.

African Ports Overwhelmed by Red Sea Reroutings(gcaptain.com)

64 points by mindracer 2 years ago | 81 comments

Show HN: Is Hormuz open yet?(ishormuzopenyet.com)

394 points by anonfunction 6 months ago | 158 comments

A single-page tracker showing whether the Strait of Hormuz is open, with daily ship transit counts from IMF PortWatch and a map of vessel positions.