About a million people have taken to the streets of Barcelona to mark Catalonia's "National Day" and show continued support for independence.
The annual celebration is the first since Catalonia's failed attempt to break away from Spain last October.
A sea of protesters wearing red shirts and bearing red-and-yellow Catalan flags banged drums, blew whistles and chanted slogans of support.
The turnout was roughly the same as last year.
Catalan regional president Quim Torra and his predecessor Carles Puigdemont, who fled into exile in Belgium after the failed independence bid, had urged people to demonstrate.
Mr Torra said at the end of the rally: "We are starting an endless march."
Tuesday's Diada holiday marks the day Barcelona fell to the soldiers of King Philip V in 1714 and for the past eight years has been used as a rallying point for independence.
It is the first such celebration since Catalonia held a referendum on independence on 1 October last year and then unilaterally declared independence on 27 October.
But the bid failed after Spain's constitutional court deemed the move illegal and Madrid imposed direct rule.
Protesters formed human towers and demanded the release of separatist leaders who are in detention awaiting trial following the independence campaign.
More protests are planned on the key anniversary dates of the referendum and declaration of independence.
An opinion poll in July suggested 46.7% of Catalans favoured independence and 44.9% opposed it.