Cities and places

Praděd

(German : Altvater; Polish: Pradziad) is a 1491 m high mountain in Hrubý Jeseník, the highest peak of this mountain range.

https://cs.wikipedia.org/wiki/Prad%C4%9Bd

Gas lamps in Prague.

The gas lighting system with 200 light points was ceremoniously lit in Prague on the evening of 15 September 1847. (The lighting system was centrally supplied with gas from the Vratislav gasworks in Karlín.) In the second phase of its construction, a conduit was laid in the Charles Bridge and the gas lighting of the main streets of Prague was extended by 150 light points in Mala Strana and Hradčany. Various types of burners and luminaires were used for lighting. Oil lamps were still installed in secondary streets. During the time of Vratislavská plynárna as a monopoly gas supplier, gas lighting in Prague was not further developed.

Ostrava

is a statutory town and the seat of the regional office of the Moravian-Silesian Region

Evening Prague.

Night photography in Prague has its own charm. The atmosphere of the monuments under night lighting will breathe on you.

Urban exploration

 (also infiltration or urbex) is the exploration of cities, factories or other objects that have been created by human activity. These are not museums or easily accessible objects, but rather objects that people cannot normally see. In most cases, urban exploration is dangerous and illegal because explorers have to overcome obstacles such as fences, walls, crumbling buildings, security cameras or security guards.

Wikipedia

Josefov Fortress

is a unique military fortification complex located in Jaroměř, approximately 20 km from Hradec Králové. The fortress was conceived as an independent fortress town from the very beginning of its construction.

https://www.region-adrspach.cz/hrady-zamky-zriceniny/pevnost-josefov/