Here are a few suggestions for your next trip from Boulogne-Billancourt

In 2 hours, you can reach Paříž.

In 3 hours, you can reach Brusel, Lyon.

In 4 hours, you can reach Londýn, Lucembursko, Rotterdam, Antverpy, Esch-sur-Alzette.

In 5 hours, you can reach Amsterdam, Marseille, Ženeva, Haag.

In 6 hours, you can reach Curych.

In 7 hours, you can reach Schaan, Birmingham, Vaduz, Mnichov.

In 8 hours, you can reach Monako, Barcelona, Milán, Liverpool.

In 9 hours, you can reach Berlín, Hamburk.

In 10+ hours, you can reach Madrid, Řím, Budapešť, Varšava, Vídeň, Stockholm, Praha, Dublin, Záhřeb, Bratislava...